4425013522121 has 4 divisors (see below), whose sum is σ = 4425186799044. Its totient is φ = 4424840245200.

The previous prime is 4425013522067. The next prime is 4425013522123. The reversal of 4425013522121 is 1212253105244.

4425013522121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2799477770896 + 1625535751225 = 1673164^2 + 1274965^2 .

It is a cyclic number.

It is not a de Polignac number, because 4425013522121 - 2¹⁸ = 4425013259977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4425013522123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86600150 + ... + 86651231.

It is an arithmetic number, because the mean of its divisors is an integer number (1106296699761).

Almost surely, 2^{4425013522121} is an apocalyptic number.

It is an amenable number.

4425013522121 is a deficient number, since it is larger than the sum of its proper divisors (173276923).

4425013522121 is a wasteful number, since it uses less digits than its factorization.

4425013522121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173276922.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 4425013522121 its reverse (1212253105244), we get a palindrome (5637266627365).

The spelling of 4425013522121 in words is "four trillion, four hundred twenty-five billion, thirteen million, five hundred twenty-two thousand, one hundred twenty-one".